Step Sister left out of mineral rights inheritance in Will

I am my Dad’s Executor of his Will. His will left 1/3rd of all liquid assets to Me, my sister and my half sister. In the will he left all of his mineral rights to my sister and I, my half sister was not given any share of his minerals.

I am now having his and two other family members wills probated in Pottawatomie County, OK. In the court filings my half sister is listed as deceased with her two children listed as heirs of my father’s mineral rights. The will was attached to the filings and clearly shows my half sister was not a heir. Oklahoma is not a Forced Heirship State, Louisiana is the only State with forced heirship.

So my question is, will there/should there be a stipulation to the Court that my half sister was not listed in the will as a heir? Am I missing something or is it normal to list all “possible” heirs in a probate case regarding mineral rights ownership? How does this get straightened out in Court? I live in Texas so can’t make the Court Hearings. I ask because as Executor of the Will I’m obligated to see that my Dad’s wishes are carried out. My attorney’s are out of town for the next week so can’t talk to them.

I love my niece and nephew and this has me really perplexed as it puts me in an awkward position.

The court order will, presumably, put the ownership in your sister and yourself.